In long-term private health insurance contracts, aging provisions are used to flatten premium profiles. An individual would like to change insurers if she perceives a low service quality. The first-best optimum is characterized by provision transfers which are higher for high risks and may be...

Over the next four decades, increasing old-age dependency ratios exert an enormous upward pressure on welfare spending in most developed countries. As this is mainly due to existing unfunded public pension schemes, many countries have embarked on far-reaching reforms in this area, strengthening...